Description : A ______ has a tableused in filtering decisions. A) passive hub B) repeater C) bridge D) none of the above
Last Answer : bridge
Description : A ________receivesa signal and,before it becomes too weak or corrupted, regenerates the original bit pattern. It thensends the refreshed signal. A) passive hub B) repeater C) bridge D) router
Last Answer : repeater
Description : Bluetooth is a _______ technology that connects devices (called gadgets) ina small area. A) wired LAN B) wirelessLAN C) VLAN D) none of the above
Last Answer : wirelessLAN
Description : A ________is a device in which the stations are completely unaware of its existence. A) passive hub B) repeater C) simple bridge D) transparent bridge
Last Answer : transparent bridge
Description : A _______ can check the MAC addresses contained inthe frame. A) passive hub B) repeater C) bridge D) route
Description : A ________operates in both thephysical andthe data link layer. A) passive hub B) repeater C) bridge D) router
Description : A __________ forwards every frame; it has no filteringcapability. A) passive hub B) repeater C) bridge D) router
Description : A _______ is a connecting devicethat operates in the physical and data link layers of theInternet model. A) repeater B) bridge C) router D) none of the above
Description : Which of the following device is used to connect two systems, especially if the systems use differentprotocols? A. hub B. bridge C. gateway D. repeater E. None of the above
Last Answer : gateway
Description : Frames from oneLAN can be transmitted to anotherLAN viathe device A. Router B. Bridge C. Repeater D. Modem
Last Answer : Bridge
Description : A device operating at Physical layer is called a. Repeater b. Gateway c. Router d. Bridge
Last Answer : a. Repeater
Description : A device operating at network layer is called a. Repeater b. Router c. Gateway d. Bridge
Last Answer : b. Router
Description : Which device connects LAN to Internet : a) HTML b) Bridge c) Router d) None of These
Last Answer : c) Router
Description : .Which device connects LAN to Internet : a) HTML b) Bridge c) Router d) None of These
Description : Determine the maximum length of the cable (in km) for transmitting data at a rate of 500 Mbps in an Ethernet LAN with frames of size 10,000 bits. Assume the signal speed in the cable to be 2,00,000 km/s. b. 2 c. 2.5 d. 5
Last Answer : b. 2
Description : ________ is actually a multiport repeater. It is normally usedto createconnections between stations in a physical star topology. A) An activehub B) A passivehub C) either (a)or (b) D) neither (a) nor (b)
Last Answer : An activehub
Description : A repeater is a connecting devicethat operates in the _______ layer of theInternet model. A) physical B) data link C) network D) all of theabove
Last Answer : physical
Description : A ________ is a repeater. A) regenerator B) ADM C) STS multiplexer/demultiplexer D) none of the above
Last Answer : STS multiplexer/demultiplexer
Description : A packet filtering firewall can a. deny certain users from accessing a service b. block worms and viruses from entering the network c. disallow some files from being accessed through FTP d. block some hosts from accessing the network
Last Answer : d. block some hosts from accessing the network
Description : Which among the below stated datagram discard code fields in ICMP is/are generated if a router fails to forward a packet due to administrative filtering? a. Source Route Failed b. Communication Administratively Prohibited c. Host Precedence Violation d. Precedence Cut-off in Effect
Last Answer : b. Communication Administratively Prohibited
Description : In IT networking, which of the following device is used in physical layer? (1) Repeater (2) Router (3) Transport Gateway (4) Bridge
Last Answer : Repeater
Description : Which is not a software life cycle model? Spiral Model Waterfall Model Prototyping Model Capability maturity Model
Last Answer : Capability maturity Model
Description : The limited capability of this routing table is easily verified with the ………………………... command. A. ping B. traceroute C. route D. netstat
Last Answer : A. ping
Description : What is a Signal Regenerating Repeater ?
Last Answer : Signal Regenerating: It regenerates the signal after receiving it and eliminates noise or unneeded signals from it. This results in better network performance.
Description : Designed to receive a signal from a transmitting station on the ground and retransmit it to a receiving station located elsewhere A. Communication satellite B. Repeater C. Relay station D. Transponder
Last Answer : A. Communication satellite
Description : Circuit used to amplify the optical signal in fiber optics communications links. A. Attenuator B. Optical repeater C. Optical amplifier D. Generator
Last Answer : B. Optical repeater
Description : In SQL, the CREATE TABLESPACE isused A. to createa place in the databasefor storageof scheme objects, rollback segments, andnaming the data files to comprise the tablespace B. to createa database trigger C. to add/rename data files, to change storage D. All of theabove E. None of the above
Last Answer : to createa place in the databasefor storageof scheme objects, rollback segments, andnaming the data files to comprise the tablespace
Description : A network consists of eight NT servers. You are planning to move servers to different segments of yournetwork, what utility should be used at eachserver to determine which server generates the most traffic? A. NBTSTAT B. NETSTAT.EXE C. Performance Monitor D. Network Monitor E. ARP.EXE
Last Answer : Network Monitor
Description : Generally TCP is reliable and UDP is not reliable. DNS which has to be reliable uses UDP because a. UDP is slower b. DNS servers has to keep connections c. DNS requests are generally very small and fit well within UDP segments d. None of these
Last Answer : c. DNS requests are generally very small and fit well within UDP segments
Description : UDP packets are called as _________ a. Segments b. Checksum c. Frames d. Datagrams
Last Answer : d. Datagrams
Description : The number of network segments on which the datagram is allowed to travel before a router should discard it is called _______. A. Time to Live (TTL) B. Time to Die(TTD) C. self recognition D. both a and b
Last Answer : A. Time to Live (TTL)
Description : What type of network is commonly used in an international organization? A) WAN B) MAN C) LAN D) CAN
Last Answer : WAN
Description : What type of network is commonly used in a collegelab environment? A) WAN B) MAN C) LAN D) CAN
Last Answer : LAN
Description : IEEE hasdefined the specifications fora wireless LAN, called _______, whichcovers the physical and data link layers. A) IEEE 802.3 B) IEEE 802.5 C) IEEE 802.11 D) IEEE 802.2
Last Answer : IEEE 802.11
Description : In astar-topology Ethernet LAN, _______ is just a point where the signals coming from different stations collide; it is thecollision point. A) An activehub B) A passivehub C) either (a)or (b) D) neither (a) nor (b)
Last Answer : A passivehub
Description : _____ are used for cellular phone, satellite,and wireless LAN communications. A) Radio waves B) Microwaves C) Infrared waves D) none of the above
Last Answer : Microwaves
Description : PIM-DM is used in a _______ multicast environment, suchas a LAN. A) dense B) sparse C) a or b D) none of the above
Last Answer : dense
Description : ________ is a collection of many separate networks. A) A WAN B) An internet C) a LAN D) None of the above
Last Answer : An internet
Description : A ______is a datacommunicationsystem spanningstates, countries, or the whole world. A) MAN B) LAN C) WAN D) none of the above
Description : A _______is a data communicationsystem withina building, plant,or campus, orbetween nearby buildings. A) MAN B) LAN C) WAN D) none of the above
Description : Devices interconnected by the LAN should include A. Computers and terminals B. mass storage device, printers and plotters C. bridges and gateways D. All of theabove E. None of the above
Last Answer : All of theabove
Description : Your company has a LAN in its downtown officeandhas now set upa LAN inthe manufacturing plant inthe suburbs. Toenable everyoneto sharedata and resources between the two LANs, what type of device(s) are neededto connect them? Choose the most correct answer. A. Modem B. Cable C. Hub D. Router
Last Answer : Router
Description : Which of the following is not a disadvantage of wireless LAN? A. Slower data transmission B. higher error rate C. interference of transmissions from different computers D. All of theabove
Description : was the first step in the evolution of Ethernet from a coaxial cable bus to hub managed, twisted pair network. a. Star LAN b. Ring LAN c. Mesh LAN d. All of the above
Last Answer : a. Star LAN
Description : Suppose there are n stations in a slotted LAN. Each station attempts to transmit with a probability P in each time slot. The probability that only one station transmits in a given slot is _______. a. nP(1 – P)n – 1 b. nP c. P(1 – P)n – 1 d. n P (1 – P)n – 1
Last Answer : a. nP(1 – P)n – 1
Description : Which of the following statements is TRUE about CSMA/CD a. IEEE 802.11 wireless LAN runs CSMA/CD protocol b. Ethernet is not based on CSMA/CD protocol c. CSMA/CD is not suitable for a high propagation delay network like satellite network d. There is no contention in a CSMA/CD network
Last Answer : CSMA/CD is not suitable for a high propagation delay
Description : Which is the protocol that maps varying IP addresses to the Physical MAC Address of a machine in a LAN network? a. ARQ (Automatic Repeat Request) b. ARP (Address Resolution Protocol) c. SLIP (Serial Line Internet Protocol) d. PLIP (Parallel Line Internet Protocol)
Last Answer : b. ARP (Address Resolution Protocol)
Description : The Aloha protocol is an OSI _______ protocol for LAN networks with broadcast topology A. layer 1 B. layer 4 C. layer 2 D. layer 3
Last Answer : C. layer 2
Description : Which of the following network is used to connect a number of computers to each other by cables in a single location? A. WAN B. LAN C. MAN D. both b and c
Last Answer : B. LAN
Description : Which is the protocol that maps varying IP addresses to the Physical MAC Address of a machine in a LAN network? A. ARQ Automatic Repeat Request B. ARP Address Resolution Protocol C. SLIP Serial Line Internet Protocol D. PLIP Parallel Line Internet Protocol
Last Answer : B. ARP Address Resolution Protocol